See the tray drawings for details on the paths described below.
This calculation assumes the TOF wall on the outer side of the ring. For the walls on the inner side, the length is about 15 ft smaller.
HV supply to strain relief on side of rack | 2 |
Strain relief to floor | 3 |
To hole penetration in floor | 2 |
Floor level to cable tray under house | 3 |
Tray under house | 6 |
Tray up slope | 9 |
Short horizontal section | 3 |
Turn into transverse section | 1 |
Transverse section | 9 |
Drop to horizontal section | 1 |
Horizontal section to port | 12 |
Up to 9" tray in port | 2 |
9" tray in port (this number will be rechecked week of 12/14) | 40 |
Out from port | 6 |
Along beam section with rise | 11 |
Across beam | 19 |
Down to beam height | 9 |
To side collection point on stand | 5 |
To strain relief on frame | 5 |
To PMT | 2 |
Total for TOF | 150 ft |
This calculation is for the high-eta counters on the -Z side of the ring. For the high-eta counters at +Z and the paddle counters, the total is 10-15 ft shorter.
HV supply to start of crossing beam (see list above) | 110 |
Across tunnel to tray along beampipe | 10 |
Drop from cross tray to beam-line tray | 2 |
To -Z beam pipe end | 28 |
Down to beam pipe | 7 |
To strain relief of detector stand | 3 |
To PMT | 4 |
Total for Trigger | 164 ft |